Abstract
PAM/OSA/PVA hydrogel was prepared by simple copolymerization using acrylamide (PAM), oxidized sodium alginate (OSA), and poly (vinyl alcohol) as monomers. The hydrogel exhibited a quadruple-shape memory effect based on imine, coordination, and borate bonds. Self-healing properties of the quadruple-shape memory hydrogel were observed to evolve due to the imine and borate bonds. The hydrogel demonstrated tunable mechanical properties because of supramolecular interactions including OSA –Ca2+, PVA –borax, and OSA –PAM in different conditions. The new hydrogel is envisaged to increase the variety as well as broaden the design and manufacturing of shape memory hydrogels.
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We thank EditSprings (www.editsprings.com) for its linguistic assistance during the preparation of this manuscript.
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This work was supported by the National Natural Science Foundation of China (No.51963001).
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Wang, M., Mo, B., Chen, B. et al. Self-healing quadruple-shape memory hydrogel based on imine, coordination, and borate bonds with tunable mechanical properties. Colloid Polym Sci 298, 285–291 (2020). https://doi.org/10.1007/s00396-020-04613-8
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DOI: https://doi.org/10.1007/s00396-020-04613-8